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Chinese Optics Letters, Volume. 21, Issue 3, 031402(2023)

Polarization domains and self-mode-locked pulses in an erbium-doped fiber laser

Peiyun Cheng1, Mengmeng Han1, Yueqing Du2, and Xuewen Shu1、*
Author Affiliations
  • 1Wuhan National Laboratory for Optoelectronics & School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
  • 2Key Laboratory of Light Field Manipulation and Information Acquisition, Ministry of Industry and Information Technology, Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an 710129, China
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    Schematic of the experimental fiber laser structure.

    Fig. 1. Schematic of the experimental fiber laser structure.

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    (a), (c) The two orthogonal polarization states of the PDs with different durations and (b), (d) the corresponding spectra.

    Fig. 2. (a), (c) The two orthogonal polarization states of the PDs with different durations and (b), (d) the corresponding spectra.

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    (a) The temporal traces of the two orthogonal polarization modes and (b) the corresponding spectra.

    Fig. 3. (a) The temporal traces of the two orthogonal polarization modes and (b) the corresponding spectra.

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    (a), (c), (e), (g), (i), (k) The temporal traces of the two orthogonal polarization states and (b), (d), (f), (h), (j), (l) the corresponding spectra for different orientations of PC1.

    Fig. 4. (a), (c), (e), (g), (i), (k) The temporal traces of the two orthogonal polarization states and (b), (d), (f), (h), (j), (l) the corresponding spectra for different orientations of PC1.

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    Wavelength differences under different PC states.

    Fig. 5. Wavelength differences under different PC states.

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    (a) Spectra of the self-mode-locked pulse under different pump powers; (b) 3 dB width and laser output power versus the pump power; (c) corresponding RF spectrum; (d) pulse shape detected by a 28 GHz high-speed oscilloscope (the red curve is the Gaussian fitting).

    Fig. 6. (a) Spectra of the self-mode-locked pulse under different pump powers; (b) 3 dB width and laser output power versus the pump power; (c) corresponding RF spectrum; (d) pulse shape detected by a 28 GHz high-speed oscilloscope (the red curve is the Gaussian fitting).

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    Peiyun Cheng, Mengmeng Han, Yueqing Du, Xuewen Shu, "Polarization domains and self-mode-locked pulses in an erbium-doped fiber laser," Chin. Opt. Lett. 21, 031402 (2023)

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    Paper Information

    Category: Lasers, Optical Amplifiers, and Laser Optics

    Received: Aug. 3, 2022

    Accepted: Sep. 20, 2022

    Posted: Sep. 21, 2022

    Published Online: Nov. 9, 2022

    The Author Email: Xuewen Shu (xshu@hust.edu.cn)

    DOI:10.3788/COL202321.031402

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology